/**
 * Copyright (C), 2020, Y2 T205
 * FileName: OrderPayedListener
 * Author: Lenovo
 * Date: 2020-05-30 20:53
 * Description:
 * History:
 * <author> <time> <version> <desc>
 * 作者姓名 修改时间 版本号 描述
 */


package com.atguigu.gulimall.order.listener;


import com.alipay.api.AlipayApiException;
import com.alipay.api.internal.util.AlipaySignature;
import com.atguigu.gulimall.order.config.AlipayTemplate;
import com.atguigu.gulimall.order.service.OrderService;
import com.atguigu.gulimall.order.vo.PayAsyncVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;
import java.io.UnsupportedEncodingException;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

/**
 * 〈一句话功能简述〉<br>
 * 〈〉
 *
 * @author Lenovo
 * @create 2020-05-30
 * @since 1.0.0
 */
@RestController
public class OrderPayedListener {

    @Autowired
    AlipayTemplate alipayTemplate;

    @Autowired
    OrderService orderService;

    @PostMapping("/payed/notify")
    public String handleAlipayed(PayAsyncVo vo, HttpServletRequest request) throws AlipayApiException, UnsupportedEncodingException {
//        只要我们收到啦支付宝我我们的异步的通知，告诉我们订单支付成功，返回success，支付宝就再也不通知啦

        Map<String, String[]> map = request.getParameterMap();

        for(String key :map.keySet()){
            String value = request.getParameter(key);
            System.out.println("参数名："+key+"==参数值"+value);
        }

       System.out.println("支付宝通知到位啦，。。数据："+map);

       // return "success";

//        延签

        //获取支付宝POST过来反馈信息
        Map<String,String> params = new HashMap<String,String>();
        Map<String,String[]> requestParams = request.getParameterMap();
        for (Iterator<String> iter = requestParams.keySet().iterator(); iter.hasNext();) {
            String name = (String) iter.next();
            String[] values = (String[]) requestParams.get(name);
            String valueStr = "";
            for (int i = 0; i < values.length; i++) {
                valueStr = (i == values.length - 1) ? valueStr + values[i]
                        : valueStr + values[i] + ",";
            }
            //乱码解决，这段代码在出现乱码时使用
            //valueStr = new String(valueStr.getBytes("ISO-8859-1"), "utf-8");
            params.put(name, valueStr);
        }

        boolean signVerified = AlipaySignature.rsaCheckV1(params, alipayTemplate.getAlipay_public_key(), alipayTemplate.getCharset(), alipayTemplate.getSign_type()); //调用SDK验证签名

        if(signVerified){
            System.out.println("签名验证成功");
            String result= orderService.handlePayResult(vo);

            return result;
        }else{
            System.out.println("签名验证失败");
            return "error";
        }


    }

}
